proxy objects won't inherit the linked objects physics settings

**To Reproduce**

- create an object in a blend file and attach whatever physics to it, say a rigid body box
- link that object from another blend file and notice you have the rigid body box defined on it
- create a proxy from that linked object and no physics is defined for it

**Expected behavior**

The created proxy should contain the defined physics object of the linked object.

**System**

Blender: 2.93.5
Armory: [armsdk](https://github.com/armory3d/armsdk/commit/001142f923608ea8b2d56a1a353d6613f30166cc)

Start by reproducing the linked-object and proxy workflow described in a blend file, using a rigid body box as the physics setting. Compare the linked object with its created proxy and trace the Blender integration path responsible for proxy creation; done means the proxy retains the linked object's defined physics settings.

Written by the indexing model from the issue text.